Claude

Claude is Anthropic's conversational AI, positioned as a safety-forward alternative to ChatGPT. It covers writing, research, analysis, agentic tool use, and software engineering via Claude Code, with an industry-leading context window and strong coding benchmarks. Available in Free, Pro, Max, Team, and Enterprise tiers, plus the Anthropic API. Team and Enterprise include SSO, audit logs, a DPA, SOC 2 Type II and ISO 27001 coverage, and a HIPAA-ready path. Since September 2025, consumer Free/Pro/Max plans default to training on user chats with a 5-year retention window unless the user opts out.

Storage

Stored in Anthropic's cloud infrastructure (AWS and Google Cloud) with US and EU regions; Enterprise offers additional residency controls.

Retention

Consumer Free/Pro/Max: up to 5 years if the user opts in to training, otherwise 30 days. Team/Enterprise/API: customer-configurable, with 30-day default for inputs and outputs.

Training on inputs

Consumer Free/Pro/Max train on user data by default (opt-out). Team, Enterprise, Claude for Work, Claude for Government, Claude for Education, and API usage are excluded from training by contract.